The nonmetals helium, neon, and argon and the metals copper, silver, and gold are among only a few elements that are found in nature in their pure forms.

What can you infer about the
chemical reactivity of these elements?

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.